Can guppies live with mystery snails?

Verdict
Yes

Yes, guppies and mystery snails can live together. Both are fine at 72–82°F. Plan on at least 10 gal.

GuppyGuppy72–82°F · pH 6.8–7.8 Mystery snailMystery snail68–82°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Guppy 72–82°Mystery snail 68–82°
The green band is the temperature range both can live in.
456789Both: 7–7.8Guppy 6.8–7.8Mystery snail 7–8
The green band is the pH both tolerate.

Size to scale

Guppy · 2 inMystery snail · 2 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

GuppyMystery snail
Temperature72–82 °F68–82 °F
pH6.8–7.87–8
Adult size2.0 in2.0 in
Minimum tank10 gal5 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupGroups of 3+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for guppies

All guppy tank mates

Better tank mates for mystery snails

All mystery snail tank mates

Questions

Can guppies live with mystery snails?

Yes, guppies and mystery snails can live together. Both are fine at 72–82°F. Plan on at least 10 gal.

What temperature suits both guppies and mystery snails?

72–82 °F. Guppies need 72–82 °F, mystery snails need 68–82 °F.

What size tank do guppies and mystery snails need together?

At least 10 gal, set by the guppy. Add space for each extra fish.